The above seeds were wrapped in a sandcloth, squeezed out a portion of the water, and placed in a refrigerator at a temperature of about 5°C. Rinse the seeds one at a time with water every morning and evening. After 2 days, dry the seeds in a bright environment. Rinse with cold water twice a day. After each flush, use an electric fan to blow the seeds for 5-10 minutes to blow off excess water from the seeds so as to avoid causing oxygen deficiency and affecting germination. Generally after 5-6 days to germinate. 2, cool treatment: The seeds that have been soaked in the first method are wrapped in gauze and squeezed and wrapped. Then hang it in the deep well, 40-50 centimeters from the surface of the water, and remove it twice a day with clean water. After washing, the surface of the seed should be dried with a fan and then wrapped in a well. This can be germinated and sown after 6-8 days of treatment.
In 1804, a British mining technician named Dervisk first used the steam engine of Watt to build the world's first steam locomotive. In 1879, Siemens Electric Company of Germany developed the first electric locomotive. The train was in China. And the irreplaceable value of any other vehicle in the world as a vehicle carrying capacity. The development of China's high-speed railway is also growing stronger. From 199 km to 350 km/h, the future speed may rise to the point where we can't predict, but the same problem is that high speed brings safety issues that are of the utmost concern to global technologists. The high temperature operation of the motor and the long-term high temperature problem of the power equipment must be faced. The cooler technology of the motor and power equipment is a difficult problem in the world. We are also learning to innovate more liquid cooling technology. More Applications. At present, our microchannel Heat Exchangers and cold plate heat exchangers have matured and established long-term cooperation with many countries.
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1. High-temperature treatment: Seeds are sunned for 1 to 8 days before sowing, soaked in cold water for 24 hours, and replaced with water once every 8 hours. Then knead the seeds, rinse with water, and remove impurities until the water is clear.